If I were a 5D3 man, I will wait.
The market within the Canon line up (current, and upcoming), and more importantly, the competitive offerings for those who aren't tied to one brand or the other is pretty intense. So expect high intial prices from Canon for pre-order and stand-in-line adoptors (aka suckers
)...and expect these prices to quickly go south within months. This is not necessarily "bad"...its just how companies market and make money.
I fully expect the 6D price slide, once out, to be faster than 5DIII.
On that note, I already saw several fanboy posts here highly supportive of the upcoming 6D at a significant introductory price... I guess we know who the next batch of suckers are gonna be